Re: Problem with cryptoapi

From:
"Igor Tandetnik" <itandetnik@mvps.org>
Newsgroups:
microsoft.public.vc.language
Date:
Fri, 17 Nov 2006 08:33:04 -0500
Message-ID:
<#HQhmzkCHHA.468@TK2MSFTNGP06.phx.gbl>
"Ashwani" <ashwani@stellarinfo.com> wrote in message
news:%23gC1mSgCHHA.992@TK2MSFTNGP03.phx.gbl

Hi, i am using cryptoapi to encrypt my files. The files are decrypted
if i decrypt them on the same system with same user, but if i try to
decrypt them with different user or on different system, decryption
fails. The function i am using to encrypt files are:-
       CryptAcquireContext();
       CryptGetUserKey( );
       CryptGetUserKey( );
      GeneratePrivateKey();
      CryptGenKey();
etc.
The fuction failing on decryption is
     CryptImportKey();


Show your code, particularly key generation and key exchange. The use of
CryptGetUserKey is suspicious - the keys it generates are different for
every user on every machine.
--
With best wishes,
    Igor Tandetnik

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